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Product introduction of light weight insulation castable
Lightweight mullite castable is made of mullite hollow balls, alumina hollow balls and ultrafine powder as the main raw materials and cement as the binder.
Features of light weight insulation castable
Light mullite castable has the characteristics of high strength, stable volume, low thermal conductivity, good heat preservation and small change rate of reburning line.
Applications of light weight insulation castable
Lightweight insulation castable is suitable for low – and medium-temperature furnace lining, roof and movable roof. Lightweight thermal castables are also used in rotary and industrial kilns for thermal insulation or single lining.
Parameters of light weight insulation castable
| Index | QJ-0.5 | QJ-0.8 | QJ-1.0 | QJ-1.1 | QJ-1.3 | QJ-1.5 | QJ-1.8 | |
| Bulk Density, g/cm3≥ | 0.5 | 0.8 | 1 | 1.1 | 1.3 | 1.5 | 1.8 | |
| Rervice Temperature, ℃ | 1150 | 1200 | 1250 | 1250 | 1300 | 1300 | 1350 | |
| Thermal Conductivity, W/m·k≤ | 350℃ | 0.15 | 0.25 | 0.3 | 0.4 | 0.45 | 0.6 | 0.65 |
| 700℃ | 0.2 | 0.3 | 0.4 | 0.45 | 0.5 | 0.7 | 0.75 | |
| Cold Crushing Strength, MPa≥ | 110℃×24h | 1.5 | 2 | 4 | 5.5 | 10 | 15 | 20 |
| 1000℃×3h | 1.5 | 2 | 5.5 | 6.5 | 15 | 20 | 30 | |
| Permanent linear change 1000℃×3h,% | -1.5 | -1 | -1 | -0.5 | -0.5 | -0.5 | -0.5 |
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